Question

Before amino acids are catabolized for energy yielding pathways, they must first undergo what step?

Question options:

removal of the amino groups (-NH2).


hydrolysis of the peptide bond.


removal of the carboxyl groups (-COOH).


condensation of the peptide bond.

Answer 1

removal of the amino groups (-NH2).

Step-by-step explanation:

First step is the removal of the amino group.

Answer 2

A

Step-by-step explanation:

Before the enzyme can enter the energy-yielding pathways, its amino acids must first be deaminated. In other words, the amino groups must be removed from the amino acids.

Only A matches this description, so that's the answer.

Hope this helps!